Actually the place of worship or pooja room is called the Dev direction of the house, from where positive energy is transmitted in the house.
Pooja Room
Pooja Room Tips
Pooja room should always be in the North East corner if it is not possible then North or East direction, that place is called the Northeast corner(Eshaan kon) which is full of positive energy.
The pooja room should never be under the stairs, it brings health problems to the people in the house.
A bandhan bar must be put on the door of the pooja room (house of worship).
In Pooja room, diyas should be lit every day in the morning and evening